Home / 289,178.24-398,975.04-161,833.60

Finding the Fourth Proportional to 289,178.24, 398,975.04 and 161,833.60

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Solution

The fourth proportional to 289,178.24, 398,975.04 and 161,833.60 is: 223,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,178.24 : 398,975.04 = 161,833.60 : x
  2. Step 2: Convert to fraction form
    289,178.24/398,975.04 = 161,833.60/x
  3. Step 3: Cross multiply
    289,178.24x = 398,975.04 × 161,833.60
  4. Step 4: Simplify right side
    289,178.24x = 64,567,567,033.34
  5. Step 5: Solve for x
    x = 64,567,567,033.34/289,178.24
  6. Step 6: Final answer
    x = 223,279.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.